Surgical implant for widening a vertebral canal

摘要

An implant is provided which allows for widening of the vertebral canal of vertebrae with less stress on the patient than in heretofore customary surgical procedures, wherein the vertebral arch of a vertebra is cut through, forming an incision gap, or is partially removed and the implant is inserted in the incision gap, wherein the incision gap is bounded by incision faces opposed to each other and the implant comprises an implant body having two contact faces which in the inserted state in the incision gap contact the incision faces of the vertebral arch.

主权项

1. Implant for use in a laminoplasty or laminectomy method in which a vertebral arch of a vertebra is cut through, forming an incision gap, or in which the vertebral arch is partially removed and the implant is inserted in the incision gap, wherein the incision gap is bounded by incision faces opposed to each other, wherein the implant comprises:
an implant body having two contact faces which in an inserted state in the incision gap are configured to contact incision faces of the vertebral arch, a fixation device comprising one or more fastening elements in a form of at least one of (i) one or more screws, (ii) one or more bolts, and (iii) one or more dowels, which are transitionable from an inoperative position to an operative position by one or more actuating devices, wherein tips of the one or more fastening elements in the inoperative position are arranged within a contour of the implant body and in the operative position are configured to emerge from openings in the contact faces into surrounding bone substance.